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2026-03-15 - 20:32
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 20 highest latencies:
System rack6slot0.osadl.org (updated Sun Mar 15, 2026 13:03:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1707599224197,20cyclictest0-21swapper/2910:12:0322
1707599224197,20cyclictest0-21swapper/2910:12:0222
1707599224197,20cyclictest0-21swapper/2910:12:0222
1704799204186,14cyclictest0-21swapper/410:10:2234
1704799204186,14cyclictest0-21swapper/410:10:2234
1704799204186,14cyclictest0-21swapper/410:10:2134
1705099203198,3cyclictest0-21swapper/712:30:2337
1705099203198,3cyclictest0-21swapper/712:30:2237
1704799202194,4cyclictest3406-21sshd12:20:1834
1704799202194,4cyclictest3406-21sshd12:20:1834
1704999200189,9cyclictest0-21swapper/610:51:1136
1704999200189,9cyclictest0-21swapper/610:51:1136
1707599196186,4cyclictest0-21swapper/2908:00:2722
1707599196186,4cyclictest0-21swapper/2908:00:2722
1704799195171,11cyclictest755-21systemd-journal11:06:2334
1704799195171,11cyclictest755-21systemd-journal11:06:2334
1704799195171,11cyclictest755-21systemd-journal11:06:2234
1707599192186,4cyclictest0-21swapper/2907:46:5522
1707599192186,4cyclictest0-21swapper/2907:46:5522
1704599192187,3cyclictest0-21swapper/212:30:2212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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